My 15 yo son is like that, too. I MAKE him take a jacket wherever we go, just in case we break down or something and have to walk a long way (better safe than sorry). It is a constant struggle to even get him to TAKE a jacket, but in his more cooperative moments he grabs one without a reminder, even though he has no intention of wearing it.

Everywhere he goes in the cold weather, people are asking him where his jacket is. You think the annoyance of that alone would be enough to get him to wear one, but nope.

I have noticed he does wear shoes and socks more often than he used to, though.

Karen